Turbine bucket angel wing compression seal

Details Turbine bucket angel wing compression seal Turbine bucket angel wing compression seal

2009-01-13

2011-12-27

Zarneke, David (Department: 2891)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between axial flow runner and vane or vane diaphragm structure

C415S174500, C416S19300A, C416S19300A, C416S21900R

Reexamination Certificate

active

08083475

ABSTRACT:
The present application provides an angel wing seal for a turbine bucket. The angel wing seal may include a first wing with a sinusoidally-shaped outer edge and a number of wing teeth positioned thereon.

REFERENCES:
patent: 6189891 (2001-02-01), Tomita et al.
patent: 6506016 (2003-01-01), Wang
patent: 2007/0224035 (2007-09-01), Nigmatulin
patent: 2008/0014094 (2008-01-01), Itzel et al.
patent: 2008/0056889 (2008-03-01), Cheng et al.
U.S. Appl. No. 11/896,533, filed Sep. 4, 2007, Bulgrin, et al.

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